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mysql - Docker 无法在 Docker 构建期间启动 MariaDB/MySQL

转载 作者:可可西里 更新时间:2023-11-01 08:24:36 25 4
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我当前的 Dockerfile 如下所示:

FROM ubuntu:14.04

ENV DEBIAN_FRONTEND noninteractive
ENV INITRD No
ENV LANG en_US.UTF-8

# Maria DB Versions
ENV MARIADB_MAJOR 5.5
ENV MARIADB_VERSION 5.5.55+maria-1~trusty

# Create mysql user and group
RUN groupadd -r mysql && useradd -r -g mysql mysql

# Install needed dependencies
RUN apt-get update && apt-get install -y --no-install-recommends software-properties-common && rm -rf /var/lib/apt/lists/*

# Add the MariaDB PGP key to verify their Debian packages.
RUN apt-key adv --recv-keys --keyserver hkp://keyserver.ubuntu.com:80 0xcbcb082a1bb943db

# Add MariaDB's repository. We use the Ubuntu 14.04 version as there ain't no MariaDB 5.5 for Ubuntu 16.04.
RUN add-apt-repository 'deb http://mirror.jmu.edu/pub/mariadb/repo/5.5/ubuntu trusty main'

# Install Maria DB and open the access for outside of the container
RUN apt-get update \
&& apt-get install -y --no-install-recommends mariadb-server=$MARIADB_VERSION \
&& rm -rf /var/lib/apt/lists/* \
&& sed -i 's/^\(bind-address\s.*\)/# \1/' /etc/mysql/my.cnf \
&& update-rc.d -f mysql disable

# Run as user mysql
USER mysql

# Start the MariaDB to add a user and create the DB
RUN mysqld

RUN echo "@TODO: Create DB, User and grant access"

# Expose Port
EXPOSE 3306

当使用 docker build -t testmariadb 构建容器时。 我得到以下输出:

    Step 13/17 : RUN mysqld
---> Running in 5aeb49c81f5e
170428 20:00:25 [Note] mysqld (mysqld 5.5.55-MariaDB-1~trusty) starting as process 7 ...
170428 20:00:25 InnoDB: The InnoDB memory heap is disabled
170428 20:00:25 InnoDB: Mutexes and rw_locks use GCC atomic builtins
170428 20:00:25 InnoDB: Compressed tables use zlib 1.2.8
170428 20:00:25 InnoDB: Using Linux native AIO
170428 20:00:25 InnoDB: Initializing buffer pool, size = 256.0M
170428 20:00:25 InnoDB: Completed initialization of buffer pool
InnoDB: The first specified data file ./ibdata1 did not exist:
InnoDB: a new database to be created!
170428 20:00:25 InnoDB: Setting file ./ibdata1 size to 10 MB
InnoDB: Database physically writes the file full: wait...
170428 20:00:25 InnoDB: Log file ./ib_logfile0 did not exist: new to be created
InnoDB: Setting log file ./ib_logfile0 size to 5 MB
InnoDB: Database physically writes the file full: wait...
170428 20:00:25 InnoDB: Log file ./ib_logfile1 did not exist: new to be created
InnoDB: Setting log file ./ib_logfile1 size to 5 MB
InnoDB: Database physically writes the file full: wait...
InnoDB: Doublewrite buffer not found: creating new
InnoDB: Doublewrite buffer created
InnoDB: 127 rollback segment(s) active.
InnoDB: Creating foreign key constraint system tables
InnoDB: Foreign key constraint system tables created
170428 20:00:25 InnoDB: Waiting for the background threads to start
170428 20:00:26 Percona XtraDB (http://www.percona.com) 5.5.52-MariaDB-38.3 started; log sequence number 0
170428 20:00:26 [Note] Plugin 'FEEDBACK' is disabled.
170428 20:00:26 [Note] Server socket created on IP: '0.0.0.0'.
170428 20:00:26 [Note] Event Scheduler: Loaded 0 events
170428 20:00:26 [Note] mysqld: ready for connections.
Version: '5.5.55-MariaDB-1~trusty' socket: '/var/run/mysqld/mysqld.sock' port: 3306 mariadb.org binary distribution

据我所知,它启动了 MariaDB,但随后停滞在那里并且不执行下一个命令。还有其他方法可以在 docker 中启动 MariaDB 吗?

最佳答案

1)没有卡住。 MariaDB 开始运行。但是您需要使用 CMD 命令而不是 RUN 命令来实现您的目的。

命令CMD,类似于RUN,可以用来执行一个特定的命令。但是,与 RUN 不同的是,它不会在构建期间执行,而是在使用正在构建的镜像实例化容器时执行。

2) 你的 dockerfile 的最后一部分应该是这样的

#Run as user mysql
USER mysql

RUN echo "@TODO: Create DB, User and grant access"

#Expose Port
EXPOSE 3306

#Right way to run mysqld
CMD ["mysqld"]

建立形象

docker build -t testmariadb .

用于运行构建的镜像

docker run testmariadb

或(分离模式)

docker run -d testmariadb

3) 请问自己为什么要使用 ubuntu 基础镜像(来自 ubuntu:14.04)。根据我的说法,你应该使用 https://hub.docker.com/_/mariadb/如果您只想在容器中运行 mariaDb。

关于mysql - Docker 无法在 Docker 构建期间启动 MariaDB/MySQL,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/43688168/

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